Lock.



No. 651,347. v Patented lune l2, I900.

C. EYSTER.

LOCK.

(Application filed Aug. $1, 1899.) (No Model.) 2 Sheets-Sheet I.

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' I 'V I I am Patented June I2, I900. C. EYSTER.

No. 65l,347.-

L 0 G K (Application filed Aug. 31', 1899.)

2 Sheets-Sheet 2.

(No Modl.)

UNITED STATES PATENT rica. l

, CHARLES EYSTER, OF HOLOOMB, ILLINOIS.

,LOCK.

SPECIFICATION forming part of Letters Patent No. 651,347, dated June 12, 1900. Application filed August 31, 1899. $erial No. 729,060. (No model.)

To all 1071,0177. it may concern:

Be it known that I, CHARLES EYSTER, a citizen of the United States, residing at IIolcomb, in the county of Ogle and State of Illinois, have invented certain new and useful- Improvements in Locks, of which the following is a specification.

The object of this invention is to construct a lock the combination. of which is operated by a series of pulsations.

In the accompanying drawings, Figure 1 is a face representation. Fig. 2 is a representation of the face-plate. Fig. 3 is a top view. Fig. 4 is a transverse section on dotted line a, Fig. 3. Fig. 5 is an isometrical representation of the head end of the locking-bolt. Fig. Gis an isometrical representation of the set of sliding racks. Fig. 7 is an isometrical representation of the racks as set up.

The movable parts of my improved lock are supported within a suitable casing composed of the sides 1 and 2, ends 3 and 4, top 5, and bottom 6. The side 2 is removable. Within the casing and to the ends are secured two bars 7 and 8, each provided with two openings. Bolts 9 pass through the openings, receiving nuts 10 on their free ends. Between the bars 7 and 8 are located three plates 11, held an equidistance apart by collars 12, placed on thebolts 9. Four racks 13, 14, 15, and 16, each provided with a lengthwise slot 17, are supported by the collars 12, located in the slots. The vertical portions of the racks have a notch 18, and the notch of the rack 14 is tapered at one end. The horizontal portions of the racks are each provided with two sections of ratchet-teeth 19 and 20. The teeth of each section are inclined toward each other, leaving a space 21 between them. Above the racks is secured a bar 22, having a notch 23 in its lower edge. Between the bar 22 and racks is located a locking-bolt 24, having a headed end 25. This bolt moves lengthwise in an opening in the end 4. To the bolt 24 is' pivoted a bail 26, its closed end located over the racks and of a size to enter the notches in the racks and bar 22.

From the outer'face of the side 2 of the casing extends a collar 27 ,and a plunger 28 is supported by the collar and side, its outer end having a knob 29,and its inner end 30 is in triangular form. A pin 31 extends from the plunger 28, and a pin 32 projects from the collar 27. To the triangular end of the plunger is secured a toothed wheel 33, having a perforated ear 34, and to the ear is pivoted a fork composed of prongs 35 and 36, connected by a rod 37. A spring 38is riveted to the ear and extends under the rod 37, and the pivoted ends of the fork have stops 39. The action of'the spring is to hold the stops 39 against the face of the toothed wheel 33, but in a manner to permit it to move toward the wheel. A spring 40, secured to the inner face of the side 2, rests upon the inner face of the toothed wheel.

A plate 41 is set on edge and projects from the inner face of the "side 2 and has a notch 42. The plunger is capable of a'lengthwise movement and also a rotary movement. The rotary movement can take place whenjthe toothed wheel passes under the notch 42 in theplate 41, and when the wheel is moved so that the plate is between two of its teeth the wheel will be held against rotation, but capable of its lengthwise movement. A springactuated click 43, pivoted to the side 2, engages the teeth of the toothed wheel 33 and holds the wheel so that the plate 41 stands between two teeth.

The side 2 is secured to the main portion of the casing,which will locate the center of the plunger centrally between the horizontal toothed sections 14 and 15 and centrallyv of their length.

If the toothedracks occupy the position shown at Figs. 1, 2, and 6, the knob is turned so that the pins 31 and 32 are in line, and a certain'number of clicks of the'click 43 to the left hand will bring the prong 36 of the fork into engagement with the teeth 20 of the rack 13, and by pushing in on the plunger once for each tooth the rack will be moved so that its notch 18 will be directly under the closed end of the yoke 26. A certain number of clicks to the right will bring the prong 35 of the fork into engagement with the teeth 19 of the rack 14, and a certain number of reciproca tions of the plunger will move the rack 14 until its notch 18 is directly under the closed end of the yoke. A certain number of clicks to the left hand will bring the prongs 36 of the fork into engagement with the teeth 19 of the rack 16, and a certain number of reciprocations of the plunger will move the rack 16 until its notch 18 is directly under the closed end of the yoke, and as the notch 18 of the toothed rack is directly under the closed end of the bail this rack does not need to be moved. As the notches of all the racks are directly under the closed end of the bail, the bail will drop into the notches and be freed from its engagement with the bar 22.

By turning the knob 29 so as to bring either of the prongs of the fork into engagement with the teeth at the left hand of the center of the racks 13, 15, and 16 and by pushing in on the plunger all of the racks and locking-bolt will be moved toward the left hand, which will withdraw the bolt, when the safe or vault door can be opened. In extending the bolt 25 one of the prongs of the fork is moved into engagement with the teeth 19 at the right hand of any one of the racks, and by pushing in on the plunger all the racks and locking-bolt are moved to the right until the locking-bolt is extended, which will bring the closed end of the bail directly under the notch 23 in the bar 22, and by moving the rack 14 to the left hand the incline of the notch in this rack will raise the bail into engagement with the notch 23 of the bar 22, which will hold the locking-bolt against movement, and by moving the other racks in either direction the combination will be thrown off.

The combination can be changed by shiftin gthe toothed wheel and fork in engagement with the triangular end of the plunger.

This lock can be operated in the dark by a person knowing the combination, as the turning of the toothed wheel against the click will make suificient sound to be distinctly heard or impulses which can be distinctly felt.

I claim as my invention-- I. In a look, a locking-bolt, a series of movable part-s guarding the bolt, each having one edge provided with ratchet-teeth, the teeth divided into two sections and the teeth of each section inclined toward each other and 5 edge provided with ratchet-teeth, the teeth divided into two sections and the teeth of each section inclined toward each otherand a pivoted and reciprocating fork adapted to engage the teeth.

3. In a look, a locking-bolt, a series of movable parts guarding the bolt, each having one edge provided with ratchet-teeth, the teeth divided into two sections and the teeth of each section inclined toward each other, a fork adapted to engage the teeth and capable of a rotary movement and a reciprocating movement and held against rotary movement when reciprocating movement is imparted.

4. In a lock, a locking-bolt, a series of movable parts guarding the bolt, each having an 6 edge provided with ratchet-teeth, the teeth divided into two sections and the teeth of each section inclined toward each other, and a plunger for moving the parts, the plunger and a stationary part provided with means for indicating the starting position of the plunger.

5. In a lock, a locking-bolt, a series of movable parts in the form of a right angle and each having one edge provided with ratchetteeth in two sections and the teeth of each section inclined toward each other and their other edges formed with a notch, the movable parts guarding the bolt and means for moving the parts by engaging the teeth.

CHARLES EYSTER. Witnesses:

BLANOHE EYSTER, A. O. BEHEL. 

